Originally Posted by
martianone
I have a Jamis Commuter 3 with a plain non-red band nexus 8 - it is my winter commuter with snow tires. Local temp at the start of this morning's commute was +36 F. Have ridden it to about -20, no shifting problems. However I do keep it at an outside ambient temp all the time- taking it in and out of a warm spot causes condensation that does not help either brake or shifting cables.
Another Jamis Commuter 3.0 rider. I haven't had the pleasure of riding in -20 temps, but I do ride frequently in the single digits for 2+ years with no problems. I would also attribute your issue to a faulty cable, not the IGH.